New Build, No Oil Pressure Om Pre Lube!

Discussion in 'Small Block Tech' started by CanadianBird, Apr 3, 2011.

  1. CanadianBird

    CanadianBird Silver Level contributor

    Which hole in oil pump feeds oil galleys?
     
  2. 462 Chevelle

    462 Chevelle 462 chevelle

    i dont remember .
    i think someone asked earlier..
    you said you had a gn v6 cover on it on the 300..
    did you order gears for a 300 or a gn v6?
     
  3. DaWildcat

    DaWildcat Platinum Level Contributor

  4. 64SkyConvert

    64SkyConvert 1964 300 ci

    Man, if I learned one thing here, it is to prime that motor while it's still on the stand.... I hope you get this figured out soon.

    I read that later year GN's had "georotor" oil pump gears- did they change the gears on certain year GN's?
     
  5. jay3000

    jay3000 RIP 1-16-21


    The one closest to the block.. The gears suck the oil out of that hole. Push it around the outside and converge at the front where it pushes the oil up through that hole..
     
  6. Fox's Den

    Fox's Den 355Xrs

    This is being made harder than it is. Even if the oil galleries did not have the plugs in them the oil pump has to fill up before it can get to the galleries. Fill the gear pocked full of vaseline, push the gears into it, scrape off the excess, put it back together, fill the filter up to the brim, shove the oil filter on as fast as you can, DO NOT turn the gears until you put that drill on it and spin it and you will have oil pressure. Done.
     
  7. CanadianBird

    CanadianBird Silver Level contributor

    U R probably right...I will give it another spin...Maybe tonight...
     
  8. Mart

    Mart Gold level member

    You go guy!
     
  9. Poppaluv

    Poppaluv I CALL WINNERS!!!

  10. CanadianBird

    CanadianBird Silver Level contributor

    Ok,

    Back from "le garage". Filled the filter to da freakin brim, waited till it settled in and filled it some more, repacked the pump and "buttoned" it up! As per one of you fine gentlemen. Spun that drill clockwise from the top and...and...nuttin!

    I had a NAPA gold on there, I took it off,put a new on tried it again and nuttin. I am starting to think that maybe that oil pick up tube is missing an o ring or a gasket and sucking air. If the problem was behind the pump you would think the oil pump housing and filter would be full of oil. I guess an option would be to overfill the crank case until there is enough oil to reach where the oil pu tube bolts to the block, if it starts pumping the oil I would know to remove the pan and not the front cover. I have not had smoke for 12 days...times like this I could burn one up in on puff. My nice new shinny engine is going to get dirty.:ball:
     
  11. DaWildcat

    DaWildcat Platinum Level Contributor

    Damn, Michael, I feel your pain.

    Give the folks here some more time to give you some new suggestions before you tear things apart.

    If nobody else has anything new, I think it's time to remove the timing cover at least. That will give you a chance to look at the plug used in the front of the right lifter galley (that's a big target for me at the moment), and maybe we can come up with some way to test the oil pump while it's on the bench.

    Devon
     
  12. 462 Chevelle

    462 Chevelle 462 chevelle

    i saw a thread on here a coulple years ago where a guy had a BBB buick put in a camaro and had good oil pressure one day then the next it would lose oil pressure with rpms.. turns out they had a rag in the oil pan around the pickup tube.can you drain the oil and get a boroscope or at least a pen light and look up in the pan?
     
  13. CanadianBird

    CanadianBird Silver Level contributor

    Respectable recommendation. Am going to wait a bit and see what else pops up on this thread. My brother on the east coast who has a strong technical background is going crazy over this, wants to check for a cheap flight to come fix this!! He is good but is one impatient dude. He would probably go nuts while I am cleaning my nuts and bolts and telling him not to get any greasy finger prints on my shiny engine parts. He is the practical one. :laugh:
     
  14. DaWildcat

    DaWildcat Platinum Level Contributor

    Michael, with what you're going through I too wish I could be there for the problem-solving. The internet is HUGE for moving information, but the hands-on part has no equal.

    Devon
     
  15. Fox's Den

    Fox's Den 355Xrs

    That would sound like a good idea to overfill the engine with oil. I do not think you are doing anything wrong it should have worked. This one is a stumper. maybe there is a hole in the pickup tube. Might have gotten a crack in it. If you could blow air into one of the holes and hear air bubbling in the pan I wonder if you could put a hose of some kind on there and try to suck the oil out of there with some kind of hand pump. I would hate to jack up the motor just to take the pan off and find out nothing is wrong with the pickup tube. Still thinking.
     
  16. Fox's Den

    Fox's Den 355Xrs

    If you lay a straight edge across the bottom of the oil pump how much are the gears below or above the flat surface of the oil pump. Maybe the gap is too big if they are below the surface.
     
  17. jay3000

    jay3000 RIP 1-16-21

    He answered that in #58..
     
  18. mhgs

    mhgs it just takes money !!

    I know it was brought up before...but I dont see the response......just suppose the primer tool isnt inserted all the way and not engaged...?
    Are you using a ta primer tool ?...or a made one..?
     
  19. CanadianBird

    CanadianBird Silver Level contributor

    This thread growing into a monster! I brought home a good quality inspection scope from a friend. I know when you get the rebuild kit it comes with 2 front cover gaskets. Maybe the wrong one was used and it's blocking the oil passage?

    The inspection tool I have is about 1/4 inch in diameter and very flexible. I should be able to have a good look inside the front timing cover, not sure I can get down into the pan from the oil pump. So next, I am going to drain the oil and snake that thing into the pan, if all looks good in the pan (no crack in pu tube, then again it missing o ring and sucking air ...) not sure I will be able to see if oil ring is missing or not...next the front cover is coming off.

    My priming tool works fine. It's well anchored in the drill, I applied resistance, made sure the slot thingy that engages with OP drive grear was fixed and not spinning...trust, me it's fine.:TU:

    Ok, back from garage, cannot see much in frt cover...took filter off, spun pump with drill, no oil coming out (I assume if air locked after pump that taking filter off would eliminate that issue), cupped hand over pump (where oil filter would go), could not feel much suction or vacuum. Put a latex glove over pump, spun drill, glove somewhat inflated but at a very slow rate. Hoping this would provide additional insight, looking more like issue with pick up tube based on my limited knowledge. Hey, anyone else get the damn hiccups when they chew nicotine (hiccup) gum!
     
    Last edited: Apr 8, 2011
  20. jay3000

    jay3000 RIP 1-16-21

    Who put the engine together??????????????????
     

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